lonald codd



(No Model.)

D. GODD.

PENCIL' :s'HARPENBm ill'nll. i

@X3i tf1/mun c nv, 511130141605,

,/f f .9 @MM Patented Mar. 19, 1889.

hlUNA-QD CODD, OF VINNIPEG, MANITOBA, UANADA, ASSIGOR TO ROBERT T).RICHARDSON, OF SAME PLACE.'

Prambel-massives.

SPECIFICATION forming part of Letters Patent Noiseese, dated March 19,1889. A Application filed June 22, 1888. 4Serial No. 277,896. (Nomodel.)

.To all whom, it may concern;

Beit known that I, DONALD CODD, acitizen of Great Britain, residing atWinnipeg, in the county of Selkirk and Province of Manitoba, Canada,have invented certain new and useful Improvements in Pencil-Qharp'eners;and l do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the.

same.

My invention consistsin a pencil-sharpener for slate-pencils whichA willnot lose its eutting-edge, will not readily clog up or breakthepeneil-point,'and the combination of the `samewith an eraser. e

In the drawings, Figure l is a perspective view of my pencil-sharpenerand eraser. Fig. 2 is across -section of the same. Fig. 5 is a `verticallongitudinal section ot' the saine.

A is the frame, which is preferably cast oi.' pewter or other suitablemetal. In the frame A are set the saw-blades B, (l, l), and E. The linesof teeth on these saw-blades, as V(l II and M H, Fig. 3, converge andmeet in the same point Il. Any suitable eraser, F, is attached totheframe A in any convenient manner.

It is evident that when .the end of a pencil is inserted in that end ofthe Sharpener at which the saw-blades are farthest removed one from theother and revolved the saw teeth will out the end of the pencil until,as it is pushed farther inte the Sharpener, it will be reduced to a1011;.,r con ical point. 'lhe teeth el' the various saw-blades will notfollow in one anothers paths;V but as the pencil is gra lually drivendown each will eut a separate path (for lsell et iin'onsiderable depth,

and therefore the point produced will have a l nearly smooth surface andwillnot be composed of a series of prominent ridges.

A second advantage is that the saw-teeth hold their cutting-edge, sincethe entire width of the blade furnishes a backing'for the nar- 4 rowapex of the tooth, which does the cutting.

Another advantage is that the material falls between the saw-blades anddoes not pack. Consequently it can easily be removed by blowing in theSharpener, or in mostvcases will drop entof itself.

lt is too evident to need'illustration that three or live or anygreaternumber of sawblades vmight be used; but I have shown four as being themest natu ral and Convenient ar- 5 rangement.

Having therefore described my invention, both in essenceand detail, whatI claim as new, and desire to protect by Letters Patent, isl 1. Apencil-sharpener the cutting-edges of which consist of several separateand distinct series of saw-teeth, the lines of which teeth converge,substantially as described.

L". A pencil-sharpener'which has, in combination, the frame and thesaw-blades set in the frame, the lines of the teeth on which saw` bladesconverge, substantially as described.

3. A peneil-sharpener and eraser which has, in combination, the frameand eraser attached to the trame, and the saw-blades set in the frame,substantially as described.

ln testimony whereof I aiiix my signature in presence oi' two witnesses.

DONALD CODI).

Witnesses: Y

'|. ll. CARMAN, ll. S. DoNALnseN.

